MIGHTY109 RED LAVA 1/2"-, 40 quarts The R.R. Special MIGHTY109 1/2" Red Lava stones . 40 quarts R.R. Special Great as a ground cover or for garden paths and planter beds Red color tones with some dark colors - Ground cover - Helps to hold in moisture. Gardens - Landscapes - Pots - Planters course texture stone - light weight.